258492789

素因数分解:

$3^4\times {\mathrm{1117}}^1\times {\mathrm{2857}}^1$

素因数の和:3986

約数の個数: 20

約数和(自身を含む): 386624524

約数和(自身を除く): 128131735

約数列:

[1, 3, 9, 27, 81, 1117, 2857, 3351, 8571, 10053, 25713, 30159, 77139, 90477, 231417, 3191269, 9573807, 28721421, 86164263, 258492789]

約数ペア:

[(1, 258492789), (3, 86164263), (9, 28721421), (27, 9573807), (81, 3191269), (1117, 231417), (2857, 90477), (3351, 77139), (8571, 30159), (10053, 25713)]